CN113662817B - Walking aid with seat capable of assisting standing and working method - Google Patents

Abstract

The invention provides a walking aid with a seat and a working method, which can assist in standing, and comprises a frame body, a seat, a connecting rod mechanism, a locking mechanism, a braking device and walking wheels arranged on the frame body, wherein an armrest is arranged on one side of the frame body, the connecting rod mechanism is fixedly arranged on the frame body, the seat is hinged with the connecting rod mechanism and is positioned on one side of the frame body away from the armrest, and the locking mechanism is fixedly connected with the connecting rod mechanism; the travelling wheels comprise universal wheels and directional wheels, and the universal wheels are arranged on one side of the frame body; the directional wheel is arranged on the other side of the frame body through a brake device; the invention has the advantages that the walker is convenient for a user to sit down, the user does not need to turn around when sitting down, and the walker is not easy to slide when sitting down.

Description

Walking aid with seat capable of assisting standing and working method

Technical Field

The invention relates to the technical field of auxiliary articles for daily life, in particular to a walking aid with a seat, which can assist standing.

Background

The variety of existing walkers is numerous, and common walkers include two-wheeled and four-wheeled walkers. Both of these walkers provide the user's function, but they have drawbacks.

Wherein the two-wheeled walker is a wheeled walker consisting of two handles, two wheels and two support legs. The fixed casters are arranged in front of the two-wheeled walker, the rear foot pads have certain friction and anti-skid performance, the pushing is easy, the directivity is good, the operation of lifting the walker is omitted, and a user can push the walker forward. Is suitable for users with insufficient upper limb force and poor balance, and can not lift the walker.

The four-wheel walker is different from the two-wheel walker in the number of wheels, and the four-wheel walker has the same application as the two-wheel walker, but the four-wheel walker moves more flexibly, can be used for faster walking speed, is generally provided with a brake device and a rest seat, and is suitable for outdoor use. Before use, the height of the telescopic rod is adjusted to enable the handle to be flush with a user, and the telescopic rod can be used by the user with better balancing capability due to lower stability. The hand brake of the four-wheel walker can be used as a running brake. After the hand brake is pressed downwards, the hand brake can be used as a parking brake, so that after the parking brake is put down, the four-wheel walker can be used as a two-wheel walker.

The patent document with publication number 20181040620.4 and publication date 2018.10.02 discloses a medical auxiliary walking vehicle, the left side frame body and the right side frame body are oppositely arranged and are fixedly connected through two connecting rods, the tops of the left side frame body and the right side frame body are respectively provided with a supporting plate and a handle, two foot frames are respectively arranged at the bottoms of the left side frame body and the right side frame body, pulley mechanisms are arranged on the foot frames, the lower end of the seat plate is hinged with the left side frame body and is fixedly locked through a first fixing pin on the left side frame body, the upper end of the toilet seat plate is hinged with the right side frame body and is fixedly locked through a second fixing pin on the right side frame body, and second locking pins are arranged on two upright posts of the right side frame body and the rotating shaft of the seat plate are on the same horizontal plane.

According to the technical solution disclosed in the patent document, however, on the one hand, when the seat plate is put down, the seat plate is horizontally arranged between the left side frame body and the right side frame body and is positioned in a standing position when a user walks, the user needs to keep away from the seat plate before putting down the seat plate, and then the user also needs to turn around to sit on the seat plate; thus, the use is troublesome; on the other hand, when the pulley is used in a switching manner with the anti-skid support leg, the frame body needs to be manually lifted, and the fixed pin A and the fixed pin B are respectively adjusted one by one for each pulley mechanism, so that the pulley is used in a switching manner with the anti-skid support leg; thus, the use is inconvenient during the conversion, and the user is generally the old or the person with poor strength such as mobility impairment, when the pulley and the anti-slip support leg are used in the conversion, when the frame body needs to be lifted for self-adjustment, the use is difficult for the user, and even if the user can lift the frame body for self-adjustment and the pulley and the anti-slip support leg are used in the conversion, the user can be greatly burdened.

Disclosure of Invention

The invention provides a walking aid with a seat and a working method, which can assist standing, the walker is convenient for the user to sit down, the user does not need to turn around when sitting down the walker, and the walker is not easy to slide after sitting down.

In order to achieve the above purpose, the technical scheme of the invention is as follows: the walking aid with the seat comprises a frame body, a seat, a connecting rod mechanism, a locking mechanism, a braking device and walking wheels arranged on the frame body, wherein an armrest is arranged on one side of the frame body; the travelling wheels comprise universal wheels and directional wheels, and the universal wheels are arranged on one side of the frame body; the directional wheel is arranged on the other side of the frame body through a brake device.

The frame body comprises a support frame and telescopic frames symmetrically arranged on the left side and the right side of the support frame relative to the seat, and the armrests are arranged on the telescopic frames and are positioned at one end far away from the seat; the two connecting rod mechanisms are symmetrically arranged on two sides of the seat respectively and fixedly connected with the two telescopic frames; the support frame comprises a front side support leg formed by extending downwards vertically and a rear side support leg formed by extending downwards vertically, and the universal wheels are arranged on the front side support leg; the orientation wheel is mounted on the rear leg.

The connecting rod mechanism comprises a mounting plate, a hydraulic rod, a first connecting rod, a second connecting rod and a third connecting rod, wherein the mounting plate is fixedly arranged on the telescopic frame, one end of the hydraulic rod is hinged to one side of the mounting plate, which is far away from the seat, the middle position of the first connecting rod is hinged to the mounting plate, one end of the third connecting rod is hinged to the mounting plate, one end of the first connecting rod is hinged to the hydraulic rod, the other end of the first connecting rod is hinged to one end of the second connecting rod, and the hinged position of the first connecting rod and the second connecting rod is positioned at one end of the third connecting rod, which is close to the hinged position of the third connecting rod and the mounting plate; one end of the second connecting rod, which is far away from the first connecting rod, is hinged with the seat; the third connecting rod is movably connected with the seat at one end far away from the first connecting rod.

The locking mechanism comprises a locking piece, a first elastic piece, a first guide groove arranged on the mounting plate and a synchronous rod connected with the two first guide grooves, wherein the first guide groove is arranged on the mounting plate and positioned on one side of the seat, two ends of the synchronous rod respectively penetrate through the first guide groove and are movably arranged in the first guide groove, the synchronous rod is fixedly connected with the bottom surface of the seat plate part, the locking piece is hinged on a mounting plate and is positioned on one side of a first guide groove on the mounting plate, a guide part is arranged on one side of the locking piece, which is close to the first guide groove, and a locking groove for locking the synchronous rod is arranged on one side, which is far away from the first guide groove, of the guide arc part; the lower end of the first guide groove and the locking groove are arranged at the same height, one end of the first elastic piece is connected with the mounting plate, and the other end of the first elastic piece is connected with the locking piece; the locking piece locks the synchronizing rod through the locking groove under the action of the first elastic piece.

The directional wheel comprises a pulley and a pulley shaft used for connecting the pulley, the pulley is rotationally connected with the pulley shaft, one end of the braking device is connected with the pulley shaft, and the other end of the braking device is connected with the rear side supporting leg.

The brake device comprises a brake guide rod, a brake pipe, a support leg connecting piece and a second elastic piece, wherein the brake guide rod is vertically and fixedly connected to the top of the pulley shaft, the brake pipe is provided with a through hole corresponding to the brake guide rod, and the brake guide rod penetrates through and is movably arranged in the through hole of the brake pipe; the length of the brake guide rod is greater than that of the brake pipe, and the length difference between the brake guide rod and the brake pipe is greater than the distance from the lowest point of the rear side support leg to the lowest point of the pulley when the second elastic piece is not compressed; the second elastic piece is arranged on the outer side of the brake guide rod, the upper end of the second elastic piece is abutted against the bottom of the brake pipe, and the lower end of the second elastic piece is abutted against the sliding shaft; one end of the supporting leg connecting piece is fixedly connected with the brake pipe, and the other end of the supporting leg connecting piece is fixedly connected with the rear supporting leg.

The seat is arranged on the other side of the frame body relative to the armrests, so that the seat is arranged on the rear side of the walker in the travelling direction, and when a user of the walker needs to rest by using the seat, the user can sit down close to the seat directly without being away from the seat or turning; at the moment, the weight of a user leaning on the seat is sequentially transferred to the first connecting rod through the second connecting rod and the third connecting rod, and the first connecting rod is hinged on the mounting plate, so that the first connecting rod rotates to drive the hydraulic rod to shrink and then drive the first connecting rod to rotate outwards, so that the second connecting rod moves downwards, the third connecting rod moves upwards, the seat moves backwards and downwards under the drive of the connecting rod mechanism, and the synchronous rod slides in the first guide groove due to the fixed connection of the synchronous rod and the seat, then the synchronous rod contacts with the guide part of the locking piece and drives the locking piece to rotate through the extrusion guide part, and then the locking piece drives the first elastic piece to stretch; when the synchronizing rod is extruded and passes through the guide part and then enters the locking groove, the locking piece rotates to the original position under the elastic action of the first elastic piece, so that the locking groove is clamped with the synchronizing rod, and the locking piece locks the synchronizing rod to enable the seat to be in a locking state; when the seat moves downwards, the hydraulic rod contracts to generate certain resistance to the seat, so that the situation that the user loses balance due to the fact that the seat moves downwards too fast can be prevented; when a user sits down on the seat and moves down, the gravity of the user drives the rear support legs of the support frame to move down along with the sitting down of the user, the upper support leg connecting pieces arranged on the rear support legs drive the brake pipe to move down, and the brake pipe extrudes the second elastic piece to compress down on the brake guide rod until the rear support legs prop against the bottom surface; therefore, after a user sits down, the pressure of the direct weight causes the brake device to drive the rear side support leg to be in butt joint with the ground, so that the rear side support leg plays a role in braking and skid resistance on the walker; meanwhile, as the seat is arranged on one side of the brake device, after a user sits down, the gravity center of the walker is positioned on one side of the seat, so that the walker is not easy to slide, and after the walker slides accidentally in time, the user is not easy to lose control of the walker due to the fact that the directional wheel is connected with the brake device, so that the walker is not easy to slide; when the user has a rest and needs to walk continuously by using the walking aid, the locking piece can be stirred in the locking mechanism, so that the locking piece rotates on the mounting piece and drives the first elastic piece to stretch until the synchronous rod is separated from the locking groove of the locking piece, the locking piece releases the locking of the synchronous rod, at this time, the seat moves upwards and forwards under the hydraulic action of the hydraulic rod, the user can stand under the assistance of the hydraulic action of the hydraulic rod until the seat returns to the highest position, and therefore, even if the seat is arranged at the rear side of the advancing direction of the walking aid, the leg lifting action of the user during walking can not be influenced.

The working method of the walking aid with the seat capable of assisting standing comprises the following steps of:

(1) When the user needs to sit down for rest, the user sits down from the seat.

(2) The weight of a user is sequentially transmitted to the first connecting rod through the second connecting rod and the third connecting rod, and as the first connecting rod is hinged to the mounting plate, the first connecting rod rotates to drive the hydraulic rod to shrink and then drive the first connecting rod to rotate outwards, so that the second connecting rod moves downwards, the third connecting rod moves upwards, the seat moves backwards and downwards under the drive of the connecting rod mechanism, the synchronous rod slides in the first guide groove, then the synchronous rod contacts with the guide part of the locking piece and drives the locking piece to rotate through the extrusion guide part, and then the locking piece drives the first elastic piece to stretch; when the synchronizing rod is extruded and passes through the guide part and then enters the locking groove, the locking piece rotates to the original position under the elastic action of the first elastic piece, so that the locking groove is clamped with the synchronizing rod, and the seat is in a locking state by locking the synchronizing rod through the locking piece.

(3) When the user has a rest and needs to walk continuously by using the walking aid, the locking piece can be stirred in the locking mechanism, so that the locking piece rotates on the mounting piece, the first elastic piece is driven to stretch until the synchronous rod is separated from the locking groove of the locking piece, the locking piece releases the locking of the synchronous rod, the seat is reset under the action of the hydraulic rod, and the user can stand under the assistance of the hydraulic action of the hydraulic rod until the seat is restored to the highest position.

In the method, the seat is arranged on the other side of the frame body relative to the armrests, so that the seat is arranged on the rear side of the walker in the travelling direction, and when a user of the walker needs to rest by using the seat, the user can sit down close to the seat directly without being away from the seat or turning; at the moment, the weight of a user leaning on the seat is sequentially transferred to the first connecting rod through the second connecting rod and the third connecting rod, and the first connecting rod is hinged on the mounting plate, so that the first connecting rod rotates to drive the hydraulic rod to shrink and then drive the first connecting rod to rotate outwards, so that the second connecting rod moves downwards, the third connecting rod moves upwards, the seat moves backwards and downwards under the drive of the connecting rod mechanism, and the synchronous rod slides in the first guide groove due to the fixed connection of the synchronous rod and the seat, then the synchronous rod contacts with the guide part of the locking piece and drives the locking piece to rotate through the extrusion guide part, and then the locking piece drives the first elastic piece to stretch; when the synchronizing rod is extruded and passes through the guide part and then enters the locking groove, the locking piece rotates to the original position under the elastic action of the first elastic piece, so that the locking groove is clamped with the synchronizing rod, and the locking piece locks the synchronizing rod to enable the seat to be in a locking state; when the seat moves downwards, the hydraulic rod contracts to generate certain resistance to the seat, so that the situation that the user loses balance due to the fact that the seat moves downwards too fast can be prevented; when a user sits down on the seat and moves down, the gravity of the user drives the rear support legs of the support frame to move down along with the sitting down of the user, the upper support leg connecting pieces arranged on the rear support legs drive the brake pipe to move down, and the brake pipe extrudes the second elastic piece to compress down on the brake guide rod until the rear support legs prop against the bottom surface; therefore, after a user sits down, the pressure of the direct weight causes the brake device to drive the rear side support leg to be in butt joint with the ground, so that the rear side support leg plays a role in braking and skid resistance on the walker; meanwhile, as the seat is arranged on one side of the brake device, after a user sits down, the gravity center of the walker is positioned on one side of the seat, so that the walker is not easy to slide, and after the walker slides accidentally in time, the user is not easy to lose control of the walker due to the fact that the directional wheel is connected with the brake device, so that the walker is not easy to slide; when the user has a rest and needs to walk continuously by using the walking aid, the locking piece can be stirred in the locking mechanism, so that the locking piece rotates on the mounting piece and drives the first elastic piece to stretch until the synchronous rod is separated from the locking groove of the locking piece, the locking piece releases the locking of the synchronous rod, at this time, the seat moves upwards and forwards under the hydraulic action of the hydraulic rod, the user can stand under the assistance of the hydraulic action of the hydraulic rod until the seat returns to the highest position, and therefore, even if the seat is arranged at the rear side of the advancing direction of the walking aid, the leg lifting action of the user during walking can not be influenced.

Further, the expansion bracket comprises two expansion rods and a reinforcing rod, wherein the two expansion rods are arranged in parallel and are vertically and fixedly connected with the support frame, and two ends of the reinforcing rod are respectively and vertically fixedly connected with the two expansion rods; the connecting rod mechanisms are symmetrically arranged on two sides of the seat respectively and fixedly connected with the telescopic rod and the reinforcing rod; above setting, the height of handrail is adjusted to the accessible telescopic link, simultaneously, and the stiffener plays the enhancement effect to the telescopic link on the one hand, and on the other hand stiffener still provides extra installation basis for the mounting panel for link mechanism installs more firmly.

Further, the seat comprises a seat plate part and a leaning part, and the leaning part is fixedly connected with the seat plate part; the seat leaning part is provided with a second guide groove which is vertically arranged at one side connected with a third connecting rod, and a guide shaft which is movably arranged in the second guide groove is arranged at one end of the third connecting rod, which is close to the seat; the second connecting rods are respectively hinged to two sides of the seat plate part; when the seat is not used, the second connecting rod drives the seat plate part of the seat to push the seat upwards and forwards, and the third connecting rod drives the guide shaft to slide to the lowest position in the second guide groove, so that the seat can be positioned at a higher position when the seat is not used, and the leg lifting action of the seat when a user walks is further avoided; when a user sits on the seat, the force received by the seat plate part is transmitted through the second connecting rod, meanwhile, the third connecting rod drives the guide shaft to slide to the highest position in the second guide groove, and part of the force received by the seat is transmitted through the third connecting rod by the leaning part, so that the force received by the seat is transmitted through the second connecting rod and the third connecting rod respectively, and the seat is connected with the connecting rod mechanism more stably.

Further, a limiting rod is further arranged between the two mounting plates of the connecting rod mechanism, and when the synchronizing rod is positioned at the lowest position of the first guide groove, the limiting rod is abutted with the bottom surface of the seat plate part; above setting, on the one hand, the gag lever post plays spacing effect to the seat, prevents that the user from weighing too much and assaulting the lowest department of first guide way and causing the damage, on the other hand, when synchronizing lever joint in locking recess, the bottom surface butt of gag lever post and seat portion plays the supporting role to the seat for the seat is more stable when the user sits at the seat.

Further, the first guide groove is arc-shaped, and the first guide groove penetrates through the mounting plate; thus, the first guide groove is matched with the moving track of the synchronous rod.

Further, the directional wheel comprises two pulleys and a pulley shaft for connecting the two pulleys, the two pulleys are respectively and rotatably connected with the pulley shaft at two sides of the pulley shaft, and the brake guide rod is arranged on the pulley shaft and positioned between the two pulleys; the brake guide rod is arranged on the pulley shaft and is positioned between the two pulleys, and the force received by the brake guide rod is respectively transmitted to the pulleys on two sides of the pulley shaft, so that the structure of the brake device and the directional wheel is more stable.

Further, one end of the support leg connecting piece, which is connected with the support leg at the rear side of the support leg, is provided with an annular through hole connecting part matched with the support leg at the rear side of the support leg, the support leg of the support leg connecting piece at the rear side is vertically arranged with an adjusting through hole, one side of the connecting piece at the annular connecting part is provided with an elastic bolt corresponding to the adjusting through hole, and the support leg connecting piece is inserted into the annular adjusting through hole through the elastic bolt to be sleeved on the support leg at the rear side and fixedly connected with the support leg; the rear support legs are fixedly connected; the elastic bolt on the support leg connecting piece is inserted into the adjusting through hole on the rear support leg, on one hand, the elastic bolt can be directly sleeved on the rear support leg through the annular connecting part, so that the brake device is convenient to install on the rear support leg, and on the other hand, the height of the walker can be adjusted by matching the adjusting through holes with different heights through the adjusting elastic bolt; in addition, when the user sits on the seat, the rear side support leg is abutted with the ground through the anti-slip pad, so that the friction force between the rear side support leg and the ground is improved, and the anti-slip performance is improved.

Further, one end of the brake guide rod passes through the through hole of the brake pipe and extends out of the brake pipe, a limiting hole and a pin correspondingly arranged in the limiting hole are arranged at the upper end of the brake guide rod, and the brake pipe is prevented from being separated from the brake guide rod through the cooperation of the limiting hole and the pin.

Further, a pressing part is further arranged on the locking piece, and the pressing part is fixedly connected with the locking piece at one side of the locking piece far away from the locking groove; thus, when a user needs to use the locking piece, the state of the seat can be adjusted by stirring or pressing the pressing part on one side of the locking piece.

Drawings

Fig. 1 is a schematic structural view of the present invention.

Fig. 2 is a schematic diagram of a split structure of the present invention.

Fig. 3 is a schematic side view of the present invention.

FIG. 4 is a schematic view of the structure of the link mechanism and the latch device according to the present invention.

FIG. 5 is a schematic view of the connection between the rear foot, the brake and the pulley wheel with one pulley wheel removed.

Fig. 6 is an enlarged partial schematic view at a in fig. 3.

Fig. 7 is a schematic structural view of the locking member in the present invention.

Fig. 8 is a partially enlarged schematic view at B in fig. 3.

Reference numerals: 1. a frame body; 11. a support frame; 111. a front side leg; 112. a rear leg; 1121. adjusting the through hole; 1122. an elastic bolt; 1123. an anti-slip pad; 12. a telescopic frame; 121. a telescopic rod; 122. a reinforcing rod; 123. a horizontal bar; 13. a hand protecting part; 2. a seat; 21. a seat plate part; 22. a leaning part; 221. a second guide groove; 222. a guide shaft; 23. a seat connecting frame; 3. a link mechanism; 31. a first link; 32. a second link; 33. a third link; 34. a mounting plate; 35. a hydraulic rod; 36. a limit rod; 4. a latch mechanism; 41. a locking member; 411. a guide part; 412. a locking groove; 413. a pressing part; 414. a first locking piece hole site; 415. a second hole site of the locking piece; 42. a first elastic member; 43. a first guide groove; 44. a synchronizing lever; 51. a universal wheel; 52. a directional wheel; 521. a pulley; 522. a pulley shaft; 6. a brake device; 61. a brake guide rod; 611. a limiting hole; 62. a brake pipe; 63. a leg connector; 631. an annular connecting part; 64. a second elastic member; 7. an armrest.

Detailed Description

The invention is described in further detail below with reference to the drawings and the detailed description.

As shown in fig. 1-8, the walking aid with a seat capable of assisting standing comprises a walking aid, wherein the walking aid comprises a frame body 1, a seat 2, a connecting rod mechanism 3, a locking mechanism 4, a brake device 6 and walking wheels arranged on the frame body 1, an armrest is arranged on one side of the frame body 1, the connecting rod mechanism 3 is fixedly arranged on the frame body 1 through bolts, the seat 2 is hinged with the connecting rod mechanism 3 and is positioned on one side, away from the armrest, of the frame body 1, and the locking mechanism 4 is fixedly connected with the connecting rod mechanism 3; the travelling wheel comprises a universal wheel 51 and a directional wheel 52, wherein the universal wheel 51 is arranged on one side of the frame body 1, and the directional wheel 52 is arranged on the other side of the frame body 1 through a brake device 6.

The frame body 1 comprises a supporting frame 11 and a telescopic frame 12 symmetrically arranged on the supporting frame 11 relative to the seat 2, and handrails are arranged on the telescopic frame 12 and are positioned at one end far away from the seat 2; the two connecting rod mechanisms 3 are arranged, the two connecting rod mechanisms 3 are symmetrically arranged on two sides of the seat 2 respectively and fixedly connected with the two telescopic frames 12 through bolts; the support frame 11 includes a front side leg 111 formed to extend vertically downward and a rear side leg 112 formed to extend vertically downward, and the universal wheel 51 is mounted on the front side leg 111; the orientation wheel 52 is mounted on the rear leg 112.

The link mechanism 3 comprises a mounting plate 34, a hydraulic rod 35, a first link 31, a second link 32 and a third link 33, wherein the mounting plate 34 is fixedly arranged on the telescopic frame 12, one end of the hydraulic rod 35 is hinged on one side of the mounting plate 34 far away from the seat 2, the middle position of the first link 31 is hinged with the mounting plate 34, one end of the third link 33 is hinged with the mounting plate 34, one end of the first link 31 is hinged with the hydraulic rod 35, the other end of the first link 31 is hinged with one end of the second link 32, and the hinged position of the first link 31 and the second link 32 is positioned at one end of the third link 33 close to the hinged position of the third link 33 and the mounting plate 34; the end of the second link 32 away from the first link 31 is hinged to the seat 2; the third link 33 is movably connected to the seat 2 at an end remote from the first link 31.

The locking mechanism 4 comprises a locking piece 41, a first elastic piece 42, two first guide grooves 43 arranged on two mounting plates 34 and a synchronizing rod 44 connected with the two first guide grooves 43, wherein the first guide grooves 43 are arranged on the mounting plates 34 and are positioned on two sides of the seat 2, two ends of the synchronizing rod 44 respectively penetrate through the first guide grooves 43 and are movably arranged in the first guide grooves 43, the synchronizing rod 44 is fixedly connected with the bottom surface of the seat plate part 21 through bolts or welding, the locking piece 41 is hinged on one mounting plate 34 and is positioned on one side of the first guide grooves 43 on the mounting plate 34, a guide part 411 is arranged on one side, close to the first guide grooves 43, of the locking piece 41, and a locking groove 412 for locking the synchronizing rod 44 is arranged on one side, far away from the first guide grooves 43, of the guide part; one end of the first elastic member 42 is connected with the mounting plate 34, and the other end of the first elastic member 42 is connected with the locking member 41; under the action of the first elastic member 42, the locking member 41 locks the synchronizing rod 44 through the locking groove 412, and when the first elastic member is not elastically deformed, the lowest part of the first guide groove is arranged in a level with the lowest part of the locking groove; the first elastic member 42 in this embodiment is a spring, one end of which is fixed to the mounting plate 34 by a bolt, and the other end of which is fixed to the locking member 41 by a bolt.

In this embodiment, the locking member 41 is further provided with a pressing portion 413, and the pressing portion 413 is fixedly connected to the locking member 41 at a side of the locking member 41 away from the locking groove 412; the pressing part 413 is arranged to extend vertically outwards from the surface of the locking piece 41, so that when a user needs to use the locking piece 41, the state of the seat 2 can be adjusted by stirring or pressing the pressing part 413 on one side of the locking piece 41; as shown in fig. 7, a first locking member hole 414 is used to hinge the locking member to the mounting member 34, and a second locking member hole 415 is used to connect the first resilient member 42 to the locking member 41.

The directional wheel 52 includes a pulley 521 and a pulley shaft 522 for connecting the pulley 521, the pulley 521 is rotatably connected to the pulley shaft 522, one end of the brake 6 is connected to the pulley shaft 522, and the other end of the brake 6 is connected to the rear leg 112.

The brake device 6 comprises a brake guide rod 61, a brake pipe 62, a support leg connecting piece 63 and a second elastic piece 64, wherein the brake guide rod 61 is vertically welded and fixed at the top of the pulley shaft 522, the brake pipe 62 is provided with a through hole corresponding to the brake guide rod 61, and the brake guide rod 61 penetrates through and is movably arranged in the through hole of the brake pipe 62; the length of the brake guide rod 61 is greater than that of the brake tube 62, and the distance H between the bottom surface of the brake tube 62 and the pulley shaft 522 when the second elastic member 64 is in an uncompressed state is greater than the distance H from the lowest point of the rear side support leg 112 to the lowest point of the pulley 521 when the second elastic member 64 is not compressed, otherwise, if H is less than H, even if the bottom surface of the brake tube 62 abuts against the pulley shaft 522, the rear side support leg cannot contact with the ground, and thus the brake anti-skid function cannot be realized; the second elastic piece 64 is arranged on the outer side of the brake guide rod 61, the upper end of the second elastic piece 64 is abutted against the bottom of the brake pipe 62, and the lower end of the second elastic piece 64 is abutted against the sliding shaft; one end of the supporting leg connecting piece 63 is welded and fixed with the brake pipe 62, and the other end of the supporting leg connecting piece 63 is fixedly connected with the rear supporting leg 112. In this embodiment, one end of the brake rod 61 is disposed through a through hole extending out of the brake pipe 62, and the upper end of the brake rod 61 is provided with a limiting hole 611 and a pin (not shown) correspondingly disposed in the limiting hole 611, so that the brake pipe 26 is prevented from being separated from the brake rod 61 by cooperation of the limiting hole 611 and the pin.

In the arrangement, the seat 2 is arranged on the other side of the frame body 1 relative to the armrests, so that the seat 2 is arranged on the rear side of the walker in the travelling direction, and when a user of the walker needs to rest by using the seat 2, the user can sit down close to the seat 2 directly without being away from the seat 2 or turning around; at this time, the weight of the user leaning on the seat 2 is transferred to the first link 31 through the second link 32 and the third link 33 in turn, since the first link 31 is hinged on the mounting plate 34, the first link 31 is rotated, the hydraulic rod 35 is driven to contract, and then the first link 31 is driven to rotate outwards, so that the second link 32 moves downwards, the third link 33 moves upwards, the seat 2 moves backwards and downwards under the driving of the link mechanism 3 is realized, since the synchronizing rod 44 is fixedly connected with the seat 2, the synchronizing rod 44 slides in the first guide groove 43, then the synchronizing rod 44 contacts the guide part 411 of the locking member 41, The locking piece 41 is driven to rotate by the extrusion guide part 411, and then the locking piece 41 drives the first elastic piece 42 to stretch; When the synchronizing rod 44 is pressed and passes through the guide part 411 and then enters the locking groove 412, the locking piece 41 rotates towards the original position under the elastic action of the first elastic piece 42, so that the locking groove 412 is clamped with the synchronizing rod 44, and the locking piece 41 locks the synchronizing rod 44 to enable the seat 2 to be in a locking state; when the seat 2 moves downwards, the hydraulic rod 35 contracts, so that certain resistance can be generated on the seat 2, and the situation that the user loses balance due to the fact that the moving speed of the seat 2 is too high can be prevented; while the user sits down on the seat 2, as the user sits down, the link mechanism 3 moves down along the length direction of the brake guide rod 61 through the brake pipe 62 to drive the rear side support leg 112 to move down, the upper support leg connecting piece 63 arranged on the rear side support leg 112 drives the brake pipe 62 to move down, and the brake pipe 62 presses the second elastic piece 64 to compress down on the brake guide rod 61 until the rear side support leg 112 abuts against the bottom surface; In this way, after a user sits down, the brake device 6 drives the rear side support legs 112 to abut against the ground due to the pressure of the direct weight, so that the rear side support legs 112 play a role in braking and skid resistance on the walker; meanwhile, as the seat 2 is arranged on one side of the brake device 6, after a user sits down, the gravity center of the walker is positioned on one side of the seat 2, so that the walker is not easy to slide, and after the walker slides accidentally, the user is not easy to lose control of the walker because the directional wheel 52 is connected with the brake device 6; When the user has a rest and needs to walk continuously by using the walker, the locking piece 41 can be stirred in the locking mechanism 4, so that the locking piece 41 rotates on the mounting piece and drives the first elastic piece 42 to stretch until the synchronizing rod 44 is separated from the locking groove 412 of the locking piece 41, the locking piece 41 contacts with the locking of the synchronizing rod 44, at this time, the seat 2 moves upwards and forwards under the hydraulic action of the hydraulic rod 35, the user can stand under the assistance of the hydraulic action of the hydraulic rod 35 until the seat 2 is restored to the highest position, and therefore, even if the seat 2 is arranged at the rear side of the walker in the advancing direction, the leg lifting action of the user during walking is not influenced; in addition, when the user needs to sit at the seat, can first produce the blocking effect to the fixed pulley with the help of wall body or other objects in the one side that the directional wheel kept away from the universal wheel, prevent that the user from leaning on and sitting down the seat and the in-process that rear side stabilizer blade did not contact with ground from helping the capable ware to appear gliding condition, and then prevent unexpected emergence.

The expansion bracket 12 comprises two expansion rods 121 and a reinforcing rod 122, the two expansion rods 121 are arranged in parallel and vertically welded and fixed with the supporting frame 11, and two ends of the reinforcing rod 122 are respectively and vertically welded with the two expansion rods 121; the link mechanisms 3 are symmetrically arranged on two sides of the seat 2 and are fixedly connected with the telescopic rod 121 and the reinforcing rod 122 through bolts respectively; the telescopic rod is telescopic in height, and is not tired here; above setting, accessible telescopic link 121 adjusts the height of handrail, and simultaneously, stiffener 122 plays the enhancement effect to telescopic link 121 on the one hand, and on the other hand stiffener 122 still provides extra installation basis for mounting panel 34 for link mechanism 3 installs more firmly.

The telescopic frame 12 further comprises horizontal rods 123 arranged above the two telescopic rods 121, and the horizontal rods 123 are respectively and vertically welded and fixed with the two telescopic rods 121; the armrest is disposed at an end of the horizontal rod 123 remote from the seat 2, and the horizontal rod 123 is provided with a hand guard 13 made of an elastic material on a side of the armrest near the seat 2.

The seat 2 comprises a seat plate part 21, a leaning part 22 and a seat connecting frame 23, wherein the leaning part 22 is fixedly connected with the seat plate part 21 through the seat connecting frame 23, and two ends of the seat connecting frame 23 are respectively fixedly connected with the leaning part 22 and the seat plate part 21 through bolts; the leaning part 22 of the seat 2 is provided with a second guide groove 221 which is vertically arranged on one side connected with a third connecting rod 33, and one end of the third connecting rod 33, which is close to the seat 2, is provided with a guide shaft 222 which is movably arranged in the second guide groove 221; the second connecting rods 32 are respectively hinged to two sides of the seat plate part 21; in the above arrangement, when the seat 2 is not used, the second connecting rod 32 drives the seat plate part 21 of the seat 2 to push the seat 2 upwards and forwards, and the third connecting rod 33 drives the guide shaft 222 to slide to the lowest position in the second guide groove 221, so that the seat 2 can be positioned at a higher position when the seat 2 is not used, and the leg lifting action of the seat 2 when a user walks is further avoided; when a user sits on the seat 2, the force received by the seat plate part 21 is transmitted through the second connecting rod 32, meanwhile, the third connecting rod 33 drives the guide shaft 222 to slide to the highest position in the second guide groove 221, and part of the force received by the seat 2 is transmitted through the third connecting rod 33 by the leaning part 22, so that the force received by the seat 2 is transmitted through the second connecting rod 32 and the third connecting rod 33 respectively, and the connection between the seat 2 and the connecting rod mechanism 3 is more stable.

The link mechanism 3 is further provided with a limiting rod 36 between the two mounting plates 34, and when the synchronizing rod 44 is positioned at the lowest position of the first guide groove 43, the limiting rod 36 is abutted with the bottom surface of the seat plate part 21; above setting, on the one hand, the gag lever post 36 plays the limiting displacement to seat 2, prevents that the user from weighing too much and impacting the lowest of first guide slot 43 and causing the damage, on the other hand, when synchronizing bar 44 joint in locking recess 412, gag lever post 36 and the bottom surface butt of seat portion 21 play the supporting role to seat 2 for seat 2 is more stable when the user sits at seat 2.

The first guide groove 43 is arc-shaped, and the first guide groove 43 penetrates through the mounting plate 34; the lower end of the first guide groove 43 is at the same height as the locking groove 412 so that the first guide groove 43 matches the moving trace of the synchronizing bar 44.

The directional wheel 52 includes two pulleys 521 and a pulley 521 shaft for connecting the two pulleys 521, the two pulleys 521 are rotatably connected to the pulley 521 shaft at both sides of the pulley 521 shaft, respectively, and the brake lever 61 is disposed on the pulley 521 shaft between the two pulleys 521; in the arrangement, the brake guide rod 61 is arranged on the shaft of the pulley 521 and is positioned between the two pulleys 521, and the brake guide rod 61 transmits the received force to the pulleys 521 on both sides of the shaft of the pulley 521, so that the structure of the brake device 6 and the directional wheel 52 is more stable.

An annular through hole connecting part matched with the rear side support leg 112 is arranged at one end of the support leg connecting piece 63 connected with the rear side support leg 112, an adjusting through hole 1121 is vertically arranged on the support leg of the rear side support leg 112 connecting piece, an elastic bolt 1122 is arranged on one side of the annular connecting part 631 of the connecting piece corresponding to the adjusting through hole 1121, and the support leg connecting piece 63 is inserted into the annular adjusting through hole 1121 through the elastic bolt 1122 and sleeved on the rear side support leg 112 to be fixedly connected with the support leg; the elastic bolt 1122 on the support leg connecting piece 63 is inserted into the adjusting through hole 1121 on the rear side support leg 112, on one hand, the elastic bolt 1122 can be directly sleeved on the rear side support leg 112 through the annular connecting part 631, so that the brake device 6 can be conveniently installed on the rear side support leg 112, and on the other hand, the height of the walker can be adjusted by matching the elastic bolt 1122 with the adjusting through holes 1121 with different heights.

The rear side support leg 112 is provided with an anti-slip pad 1123; thus, when a user sits on the seat 2, the rear side leg 112 is abutted against the ground through the anti-slip pad 1123, the friction between the rear side leg 112 and the ground is improved, and the anti-slip performance is improved.

The working method of the walking aid with the seat capable of assisting standing comprises the following steps of:

(1) When the user needs to sit down for rest, the user sits down from the seat.

(2) The weight of a user is sequentially transmitted to the first connecting rod through the second connecting rod and the third connecting rod, and as the first connecting rod is hinged to the mounting plate, the first connecting rod rotates to drive the hydraulic rod to shrink and then drive the first connecting rod to rotate outwards, so that the second connecting rod moves downwards, the third connecting rod moves upwards, the seat moves backwards and downwards under the drive of the connecting rod mechanism, the synchronous rod slides in the first guide groove, then the synchronous rod contacts with the guide part of the locking piece and drives the locking piece to rotate through the extrusion guide part, and then the locking piece drives the first elastic piece to stretch; when the synchronizing rod is extruded and passes through the guide part and then enters the locking groove, the locking piece rotates to the original position under the elastic action of the first elastic piece, so that the locking groove is clamped with the synchronizing rod, and the seat is in a locking state by locking the synchronizing rod through the locking piece.

(3) When the user has a rest and needs to walk continuously by using the walking aid, the locking piece can be stirred in the locking mechanism, so that the locking piece rotates on the mounting piece, the first elastic piece is driven to stretch until the synchronous rod is separated from the locking groove of the locking piece, the locking piece releases the locking of the synchronous rod, the seat is reset under the action of the hydraulic rod, and the user can stand under the assistance of the hydraulic action of the hydraulic rod until the seat is restored to the highest position.

In the method, the seat 2 is arranged on the other side of the frame body 1 relative to the armrests, so that the seat 2 is arranged on the rear side of the walker in the travelling direction, and when a user of the walker needs to rest by using the seat 2, the user can sit down close to the seat 2 directly without being away from the seat 2 or turning around; at this time, the weight of the user leaning on the seat 2 is transferred to the first link 31 sequentially through the second link 32 and the third link 33, and as the first link 31 is hinged on the mounting plate 34, the first link 31 is rotated to drive the hydraulic rod 35 to shrink, and then drive the first link 31 to rotate outwards, so that the second link 32 moves downwards, the third link 33 moves upwards, the seat 2 moves backwards and downwards under the drive of the link mechanism 3 is realized, and as the synchronizing rod 44 is fixedly connected with the seat 2, the synchronizing rod 44 slides in the first guide groove 43, then the synchronizing rod 44 contacts the guide part 411 of the locking piece 41, and drives the locking piece 41 to rotate through the extrusion guide part 411, and then the locking piece 41 drives the first elastic piece 42 to stretch; when the synchronizing rod 44 is pressed and passes through the guide part 411 and then enters the locking groove 412, the locking piece 41 rotates towards the original position under the elastic action of the first elastic piece 42, so that the locking groove 412 is clamped with the synchronizing rod 44, and the locking piece 41 locks the synchronizing rod 44 to enable the seat 2 to be in a locking state; when the seat 2 moves downwards, the hydraulic rod 35 contracts, so that certain resistance can be generated on the seat 2, and the situation that the user loses balance due to the fact that the moving speed of the seat 2 is too high can be prevented; while the user sits down on the seat 2, as the user sits down, the link mechanism 3 moves down along the length direction of the brake guide rod 61 through the brake pipe 62 to drive the rear side support leg 112 to move down, the upper support leg connecting piece 63 arranged on the rear side support leg 112 drives the brake pipe 62 to move down, and the brake pipe 62 presses the second elastic piece 64 to compress down on the brake guide rod 61 until the rear side support leg 112 abuts against the bottom surface; in this way, after a user sits down, the brake device 6 drives the rear side support legs 112 to abut against the ground due to the pressure of the direct weight, so that the rear side support legs 112 play a role in braking and skid resistance on the walker; meanwhile, as the seat 2 is arranged on one side of the brake device 6, after a user sits down, the gravity center of the walker is positioned on one side of the seat 2, so that the walker is not easy to slide, and after the walker slides accidentally, the user is not easy to lose control of the walker because the directional wheel 52 is connected with the brake device 6; when the user has a rest and needs to walk continuously by using the walker, the locking piece 41 can be stirred in the locking mechanism 4, so that the locking piece 41 rotates on the mounting piece and drives the first elastic piece 42 to stretch until the synchronizing rod 44 is separated from the locking groove 412 of the locking piece 41, the locking piece 41 contacts with the locking of the synchronizing rod 44, at this time, the seat 2 moves upwards and forwards under the hydraulic action of the hydraulic rod 35, the user can stand under the assistance of the hydraulic action of the hydraulic rod 35 until the seat 2 is restored to the highest position, and therefore, even if the seat 2 is arranged at the rear side of the walking walker in the advancing direction, the leg lifting action of the user is not influenced.

Claims (10)

1. A walking aid with a seat capable of assisting standing, which is characterized in that: the seat is hinged with the connecting rod mechanism and is positioned on one side of the frame body away from the handrail, and the locking mechanism is fixedly connected with the connecting rod mechanism; the travelling wheels comprise universal wheels and directional wheels, and the universal wheels are arranged on one side of the frame body; the directional wheel is arranged on the other side of the frame body through a brake device;

The frame body comprises a support frame and telescopic frames symmetrically arranged on the left side and the right side of the support frame relative to the seat, and the armrests are arranged on the telescopic frames and are positioned at one end far away from the seat; the two connecting rod mechanisms are symmetrically arranged on two sides of the seat respectively and fixedly connected with the two telescopic frames; the support frame comprises a front side support leg formed by extending downwards vertically and a rear side support leg formed by extending downwards vertically, and the universal wheels are arranged on the front side support leg; the directional wheel is arranged on the rear support leg;

The connecting rod mechanism comprises a mounting plate, a hydraulic rod, a first connecting rod, a second connecting rod and a third connecting rod, wherein the mounting plate is fixedly arranged on the telescopic frame, one end of the hydraulic rod is hinged to one side of the mounting plate, which is far away from the seat, the middle position of the first connecting rod is hinged to the mounting plate, one end of the third connecting rod is hinged to the mounting plate, one end of the first connecting rod is hinged to the hydraulic rod, the other end of the first connecting rod is hinged to one end of the second connecting rod, and the hinged position of the first connecting rod and the second connecting rod is positioned at one end of the third connecting rod, which is close to the hinged position of the third connecting rod and the mounting plate; one end of the second connecting rod, which is far away from the first connecting rod, is hinged with the seat; the third connecting rod is movably connected with the seat at one end far away from the first connecting rod;

The locking mechanism comprises a locking piece, a first elastic piece, a first guide groove and a synchronous rod, wherein the first guide groove is formed in the mounting plate, the synchronous rod is connected with the two first guide grooves, the first guide groove is formed in the mounting plate and is positioned on one side of the seat, two ends of the synchronous rod respectively penetrate through the first guide groove and are movably arranged in the first guide groove, the synchronous rod is fixedly connected with the bottom surface of the seat plate part, the locking piece is hinged on the mounting plate and is positioned on one side of the first guide groove on the mounting plate, a guide part is arranged on one side, close to the first guide groove, of the locking piece, and a locking groove for locking the synchronous rod is formed on one side, far away from the first guide groove, of the guide part; the lower end of the first guide groove and the locking groove are arranged at the same height, one end of the first elastic piece is connected with the mounting plate, and the other end of the first elastic piece is connected with the locking piece; under the action of the first elastic piece, the locking piece locks the synchronous rod through the locking groove;

the directional wheel comprises a pulley and a pulley shaft used for connecting the pulley, the pulley is rotationally connected with the pulley shaft, one end of the brake device is connected with the pulley shaft, and the other end of the brake device is connected with the rear side supporting leg;

The brake device comprises a brake guide rod, a brake pipe, a support leg connecting piece and a second elastic piece, wherein the brake guide rod is vertically and fixedly connected to the top of the pulley shaft, the brake pipe is provided with a through hole corresponding to the brake guide rod, and the brake guide rod penetrates through and is movably arranged in the through hole of the brake pipe; the length of the brake guide rod is greater than that of the brake pipe, and the distance between the bottom surface of the brake pipe and the pulley shaft when the second elastic piece is in an uncompressed state is greater than that between the lowest point of the rear side support leg and the lowest point of the pulley when the second elastic piece is not compressed; the second elastic piece is arranged on the outer side of the brake guide rod, the upper end of the second elastic piece is abutted against the bottom of the brake pipe, and the lower end of the second elastic piece is abutted against the sliding shaft; one end of the supporting leg connecting piece is fixedly connected with the brake pipe, and the other end of the supporting leg connecting piece is fixedly connected with the rear supporting leg.

2. A kind of according to claim 1a walking aid with a seat, which can assist standing, the method is characterized in that: the telescopic frame comprises two telescopic rods and a reinforcing rod, the two telescopic rods are arranged in parallel and are vertically and fixedly connected with the supporting frame, and two ends of the reinforcing rod are respectively and vertically fixedly connected with the two telescopic rods; the connecting rod mechanisms are symmetrically arranged on two sides of the seat respectively and fixedly connected with the telescopic rod and the reinforcing rod.

3. A kind of according to claim 1a walking aid with a seat, which can assist standing, the method is characterized in that: the seat comprises a seat plate part and a leaning part, and the leaning part is fixedly connected with the seat plate part; the leaning part is provided with a second guide groove which is vertically arranged at one side connected with a third connecting rod, and a guide shaft which is movably arranged in the second guide groove is arranged at one end of the third connecting rod, which is close to the seat; the second connecting rods are respectively hinged to two sides of the seat plate part.

4. A method according to claim 3a walking aid with a seat, which can assist standing, the method is characterized in that: and a limiting rod is further arranged between the two mounting plates of the connecting rod mechanism, and when the synchronizing rod is positioned at the lowest position of the first guide groove, the limiting rod is abutted with the bottom surface of the seat plate part.

5. A kind of according to claim 1a walking aid with a seat, which can assist standing, the method is characterized in that: the first guide groove is arc-shaped and penetrates through the mounting plate; the lower end of the first guide groove is at the same height as the locking groove.

6. A kind of according to claim 1a walking aid with a seat, which can assist standing, the method is characterized in that: the directional wheel comprises two pulleys and a pulley shaft used for connecting the two pulleys, the two pulleys are respectively and rotatably connected with the pulley shaft at two sides of the pulley shaft, and the brake guide rod is arranged on the pulley shaft and positioned between the two pulleys.

7. A kind of according to claim 1a walking aid with a seat, which can assist standing, the method is characterized in that: the support leg connecting piece is provided with an annular connecting part matched with the rear side support leg at one end connected with the rear side support leg, adjusting through holes are vertically and equidistantly arranged on the rear side support leg, an elastic bolt is arranged on one side of the annular connecting part, corresponding to the adjusting through holes, of the connecting piece, and the support leg connecting piece is inserted into the adjusting through holes through the elastic bolt to be sleeved on the rear side support leg for fixed connection; and the rear side support leg is provided with an anti-slip pad.

8. A kind of according to claim 1a walking aid with a seat, which can assist standing, the method is characterized in that: one end of the brake guide rod passes through the through hole of the brake pipe and extends out of the brake pipe, a limiting hole and a pin correspondingly arranged in the limiting hole are arranged at the upper end of the brake guide rod, and the brake pipe is prevented from being separated from the brake guide rod through the cooperation of the limiting hole and the pin.

9. A kind of according to claim 1a walking aid with a seat, which can assist standing, the method is characterized in that: the locking piece is also provided with a pressing part, and the pressing part is fixedly connected with the locking piece at one side of the locking piece far away from the locking groove.

10. A method of operating a stand-assisted, seated walker according to any one of claims 1-9, wherein: the working method comprises the following steps:

(1) When a user needs to sit down for rest, the user sits down from the seat;

(2) The weight of a user is sequentially transmitted to the first connecting rod through the second connecting rod and the third connecting rod, and as the first connecting rod is hinged to the mounting plate, the first connecting rod rotates to drive the hydraulic rod to shrink and then drive the first connecting rod to rotate outwards, so that the second connecting rod moves downwards, the third connecting rod moves upwards, the seat moves backwards and downwards under the drive of the connecting rod mechanism, the synchronous rod slides in the first guide groove, then the synchronous rod contacts with the guide part of the locking piece and drives the locking piece to rotate through the extrusion guide part, and then the locking piece drives the first elastic piece to stretch; when the synchronizing rod is extruded and passes through the guide part and then enters the locking groove, the locking piece rotates to the original position under the elastic action of the first elastic piece, so that the locking groove is clamped with the synchronizing rod, and the locking piece locks the synchronizing rod to enable the seat to be in a locking state;

(3) When the user has a rest and needs to walk continuously by using the walking aid, the locking piece can be stirred in the locking mechanism, so that the locking piece rotates on the mounting piece, the first elastic piece is driven to stretch until the synchronous rod is separated from the locking groove of the locking piece, the locking piece releases the locking of the synchronous rod, the seat is reset under the action of the hydraulic rod, and the user can stand under the assistance of the hydraulic action of the hydraulic rod until the seat is restored to the highest position.